ykoordináta

The y-coordinate, often denoted by the letter 'y', represents the vertical position of a point in a two-dimensional Cartesian coordinate system. In this system, a point is defined by a pair of numbers (x, y), where x is the x-coordinate and y is the y-coordinate. The x-axis is the horizontal line, and the y-axis is the vertical line, intersecting at the origin (0,0).

The value of the y-coordinate indicates how far a point is located above or below the x-axis. A positive y-coordinate signifies a position above the x-axis, while a negative y-coordinate indicates a position below it. The magnitude of the y-coordinate corresponds to the distance from the x-axis. For example, a point with a y-coordinate of 5 is located 5 units above the x-axis, and a point with a y-coordinate of -3 is located 3 units below the x-axis.

In geometric contexts, the y-coordinate is crucial for defining curves, shapes, and the relative positions of objects. It is a fundamental concept in algebra, geometry, and various fields of science and engineering where spatial relationships are analyzed. Understanding the y-coordinate is essential for plotting graphs, solving equations, and interpreting data represented in a coordinate plane.